Cool
Average highs are around 18°C, so pack for cooler days.
May verdict
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 5.2h per day, enough for a balanced month. Rainfall averages 111mm, so some wet days are possible.
Monthly averages
Temp
18°C
Rain
111mm
Sun
5.2h
Sea
18°C
Weather score
32
Poor
Cool
Average highs are around 18°C, so pack for cooler days.
Showers
Rainfall averages 111mm, so some wet days are possible.
Some sun
Sunshine averages 5.2h per day, enough for a balanced month.
Cool sea
Sea temperatures average 18°C, so the water can feel cool.
Map
Compare White Island, New Zealand with nearby places by weather score, rain, sun, temperature, and swim conditions.
May18°C average high
May is on the cooler side of White Island's year, useful if you prefer less intense daytime heat.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
May111mm average rain
May sits near White Island's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to February, April to May, and September to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May5.2 hours average sun
May is below White Island's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJanuary to February and November to December
This stretch has the strongest sunshine in the monthly averages.
May18°C average sea
May is close to White Island's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJanuary to April
Sea temperatures are usually near 20°C in this stretch, so swimming comfort is at its strongest.
May32 weather score
May scores below White Island's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJanuary to March
These months have the strongest weather score in the monthly averages.